Resources Contact Us Home
Control apparatus of internal combustion engine

Image Number 15 for United States Patent #7284367.

The ignition timing is sustained at an initial value during a predetermined time beginning at a start of an engine, and is retarded after the predetermined time is elapsed to heat a catalyst at an early time. The predetermined time ends when the negative pressure of an intake pipe or the negative pressure of a brake booster reaches to a predetermined value. That is, the predetermined time is a period, which begins at a start of the engine and ends when a proper negative pressure can be sustained in the brake booster. As a result, it is possible to assure a negative pressure in the brake booster at an early time and to reduce exhaust emission at a start of the engine simultaneously.

  Recently Added Patents
Large volume data replication using job replication
Interface member for lock system and method
Method of manufacturing color filter substrate for semitransmissive type liquid crystal display device
Storage vessel and a break tool for dividing such vessel
Reptile breeding tank
Compression limiting nut
Indexing resources for transmission of acknowledgement signals in multi-cell TDD communication systems
  Randomly Featured Patents
System for delivery
Oil supply structure of scroll compressor
Methods and apparatus for processing multimedia broadcasts
Incremental data storage method, apparatus, interface, and system
Sheathed heater
Method and apparatus for calibrating device pick-up heads used in integrated circuit handler systems
Generation of an extracted timing model file
Nitrosated and nitrosylated potassium channel activators, compositions and methods of use
Frequency stabilization circuit for a local oscillator